Air carrier X TCASII RA unauthorized climb from assigned altitude. Ghost target.

Attributes
ACN	247287
Time
Date	199306
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ord
State Reference	IL
Altitude	msl bound lower : 10000 msl bound upper : 12000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	other personnel other
Qualification	controller : radar
ASRS Report	247287
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X said he got an RA and climbed to 12000 ft. He said he got the RA for just a second. There was no other plane and he climbed 2000 ft.

Original NASA ASRS Text

Title: ACR X TCASII RA UNAUTH CLB FROM ASSIGNED ALT. GHOST TARGET.

Narrative: ACR X SAID HE GOT AN RA AND CLBED TO 12000 FT. HE SAID HE GOT THE RA FOR JUST A SECOND. THERE WAS NO OTHER PLANE AND HE CLBED 2000 FT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.